Sewing-machine.



L. ONDERDONK.

SEWING MACHINE.

APPLIUATION FILED SEPT. 10; 1907.

l 1 24,323. Patented Jan. 12, 1915.

B SHEBTSSHEET 1.

L. ONDERDONK.

SEWING MACHINE.

APPLIGATION FILED SEPT. 10. 1907.

1,11%,323, Patented Jan. 12, 1915.

v 6 SHEETSSHEET 2.

L, ONDERDONK.

SEWING MACHINE.

APPLICATION FILED SEPT. 10. 1907.

Patented Jan. 12, 1915.

5 SHEETSSHEBT 3.

L. ONDERDONK.

SEWING MAGHINE.

APPLIOATIOH FILED sun. 10. 1907.

1,124,323, Patented M1112, 1915.

E SEEETS-SHEET 4.

(ltmumg I NORRIS PETERS CQ. FHOTO-LlTHO-. WASHINGTDN. D4 6 L. ONDERDONK.

SEWING MACHINE.

APPLICATION FILED sBPTJo, 1907.

Patented Jan. 12, 1915.

5 SHEBTS-SHEET 5.

LANSING ONDERDONK, OF NEW YORK, N. Y., ASSIGNOR TO UNION SPECIAL MACHINE COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

SEWING-MACHINE.

Specification of Letters Patent.

Patented J an. 12, 1915.

Application filed September 10, 1907. Serial No. 392,210.

To all whom it may concern Be it known that I, LANSING ONDERDONK, a citizen of the United States, residing at New York, in the county of New York, State of New York, have invented certain new and useful Improvements in Sewing- Machines, of which the following is a description, reference being had to the accompanying drawing and to the letters and figures of reference marked thereon.

My invention relates to sewing machines, and has for its object to provide a looperoperating mechanism, wherein the looper cooperates with the needle in the final setting of the stitch.

A further object of my invention is to provide a looper-operating mechanism, wherein the looper is moved away from the work support, while in the needle loop.

A still further object of my invention is to provide a looper-operating mechanism, wherein the looper is oscillated to take the needle loop, it is moved laterally to avoid the needle, and is also moved away from the work support when given its lateral movement.

These and other objects will in part be obvious, and will in part be hereinafter more fully described.

In the drawings which show by way of illustration one embodiment of my invention, Figure 1 is an end view of a sewing machine, with certain parts broken away, showing my improvements applied thereto; Fig. 2 is a bottom plan view of the samea Fig. 3 is a longitudinal sectional view, showing the looper in its retracted position; Fig. 4 is a similar view, with the looper in its forward position; Fig. 5 is a sectional view of the standard and overhanging arm, showing the looper-operating eccentrics, and a portion of the looper-operating mechanism; Fig. 6 is a sectional view of the standard, showing the looper-operating eccentrics, and a portion of the looperoperating mechanism; Fig. 7 is a detail view, showing the lateral movement of the looper and the movement of the same away from the work support. Fig. 8 is a modified form of looper operating mechanism.

The bed plate 1 has rising therefrom the usual standard 2, carrying the overhanging arm 3, which is provided at its forward end with the usual needle head 4:. The needle 5 is carried by the needle bar 6, and is reciprocated in the needle head by means of a link 7, connected to a crank disk 8, mounted on the shaft 9.

The shaft 9 is rotated by a belt wheel 10, or any other suitable mechanism. The presser foot 11 is carried by. a presser bar 12. Said presser bar is lifted by the usual hand lever 13. A thread controller arm 14: is provided with a thread eye 15, at its forward end. Said thread controlling arm 14 1s pivoted as at 16 to the overhanging arm, and is connected at its rear end to a link 17 which in turn is pivoted to a collar 18 carried by the presser bar.

The take-up arm 19 is provided with a thread eye or guide 20, and said arm is secured to a collar 21, mounted on the link 7, which reciprocates the needle bar. A looper 22 is carried by an arm 23, extending from a carrier 2%, which is pivotally secured on a support 25 (see Fig. 2). The looper carrier is oscillated on its pivotal support by means of a link 26 which is connected at its forward end to a ball stud 27, mounted on the arm 23. The looper support 25 is provided with outwardly projecting ends which are supported in bearings 28 and 29, carried by the arms 30 and 31, respectively.

The arms 30 and 31 are rigidly secured to the shaft 32. The shaft 32 is mounted in suitable bearings 33 and 34:, which are secured to the under side of the work support. The shaft 32 is provided with a crank arm 35, at its rear end, to which is adjustably connected a stud 36.

The stud 36 is connected to one end of an eccentric rod 37, which cooperates with an eccentric 39 mounted on the main shaft 9 in the overhanging arm. The link 26 is connected at its rear end to a ball stud 40, carried by a rock lever a1, which is pivoted at 12 to a swinging arm 4-3. The swinging arm 4-3 is rigidly secured to a shaft 4%, which is mounted in bearing blocks 15 and 46, threaded into the standard 2 of the machine.

The swinging arm 43 is provided with an upturned end at its forward end, which carries a stud 47. An eccentric strap 48 is pivoted to the stud 47, and cooperates with the eccentric 49 on the main shaft 9. The other arm of the rock lever 41 is pivoted at 50 to an eccentric strap 51, which cooperates with an eccentric 52 on the main shaft 9. As the main shaft 9 rotates, the arm 43 i eccentric strap 48, and this movement of the arm 43 will give a bodily movement to the rock arm 41. At the same time the eccentric 52 will oscillate the rock shaft 41, upon its pivot 42. These movements caused by the eccentrics 49 and 52 are compounded and conveyed through the link 26 to the looper 22 to oscillate the same. This means for compounding the movements of oppositely disposed eccentrics for the oscillation of the looper, forms no part of the present invention, but is shown, described and claimed in my co-pending application, Serial No. 213,516, filed June 21st, 1904.

The looper support 25 extends through the bearing 29 in the arm 31, and has rigidly secured to its outer end a collar 53, which carries an arm 54 (see Figs. 1 and 2). The arm 54 is slotted as at 54", andin said slot is mounted a stud 55. Alink 56 is pivoted at one end, as at 57, to the bed plate 1 of the machine, and at its other end is connected with a stud 55.

The feed dog 58 (see Fig. 1) is of the usual construction, and is carried by a feed bar 59. The needle guard 60 is also of the usual construction. The feed dog, however, is cut away on its under side, so that the looper 22 may be moved close to the under side of the work support when taking the needle loop.

The thread-controlling arm 61 for the looper thread is pivoted to a bracket 62, carried by the outer end of the looper support'25. This arm 61 is connected by means of a link 63 to the looper carrier 24. The looper is oscillated back and forth to engage the needle loop by means of the link 26.

The operation of the machine is as fo1- lows: Starting with the needle at the lower end of its stroke and the looper is at this time in-its retracted position, as the needle rises a loop is thrown out in the usual manner, and the looper moves forward into said loop. As the looper approaches the end of its forward stroke, the shaft 32 is oscillated by means of the eccentric 39 on the main shaft 9, and as said shaft 32 is oscillated the arms 30 and 31 which carry the looper support, are moved so as to carry the looper support and the looper away from the work support. As the looper moves away from the work support, said looper support will be oscillated, for the reason that the arm 54 is connected to the link 56, which in turn is pivoted to the work support. Therefore, as the looper support moves away from the work support, said looper support will be oscillated, so as to give to the looper its needle-avoiding movement. At this time, the needle is reaching the upper end of its stroke, and the thread is put under strain for the final 65 setting of the previous stitch. It will also be noted that at this time the looper is in the needle 100p, and as said looper swings to the opposite side of the needle loop and away from the work support, it is also swinging away from the previous stitch, and this movement of the looper will also put the needle thread under strain and assist the needle in drawing the previous stitch tight. The looper is retracted in the usual manner from the needle loop, and is brought to its normal position by again oscillating the shaft as the looper approaches the rear end of its stroke.

The stud 36 is adj'ustably connected to the arm 35 (see Fig. 6), and by this adjustment the throw imparted to the shaft 32 may be adjusted, and thereby the distance which the looper is moved away from the work support varied. The slot 54 in the arm 54 is formed eccentric to the pivot point 57 of the link 56. By the adjustment of the stud 55 in the slot 54, I am enabled to change the position of the looper, relative to the needle, and also by this adjustment vary the amount of throw of the looper laterally when the supporting arms for the looper support are oscillated.

In place of vibrating the looper laterally by the same eccentric that gives the rising and falling movements to the looper, I may provide separate means for vibrating the looper. In Fig. 8, I have shown the looper support 53 as provided with an arm 64.

The shaft 32 is made hollow and a rod or shaft 67 extends through said shaft 32. The rod 67 is provided with an arm 66 which is arranged substantially parallel with the arm 64. A link 65 is pivotally convnected with the arms 64 and 66. By this arrangement as the shaft 32 oscillates the looper support 53 is moved up and down. The rod 67 is provided with suitable means which may be connected with the main shaft 9, whereby said rod 67 is oscillated from said main shaft. The oscillation of the shaft 67 will give to the looper carrier and looper a lateral needle avoiding movement.

The parts may be so timed that the loop-er is moved away from the work support be fore it is given its needle avoiding movement, or later if desired.

Having thus particularly described my invention, what I claim as new and desire to secure by Letters Patent is 1. The combination of a work support, a needle, a thread-carrying looper, means for moving said looper into and out of the needle loop, means for moving the looper laterally to avoid the needle, and means independent of the laterally moving means for the looper for moving said looper bodily in a direction away from the work support while in the needle loop.

2. The combination of a work support, a needle, a thread-carrying looper, a looper support for said looper, means for moving said looper on said support into and out of the needle loop, means for moving said looper support for giving the looper a lateral movement to avoid the needle, and means for moving said looper support bodily to carry the looper away from the work support while in the needle loop, whereby the looper draws on the needle loops as the stitches are tightened.

3. The combination of a work support, a needle, a thread carrying looper, means for moving said looper into and out of the needle loop, and means for simultaneously moving said looper laterally to avoid the needle, and in a direction away from and substantially at right angles to the work support, while in the needle loop, whereby said looper draws on the needle loop as the stitches are tightened, and means whereby the movement of the looper away from the work support, may be varied.

4c. The combination of a needle, a looper, a looper carrier, a looper support on which said looper carrier is pivoted, means for oscillating said carrier, means for moving said looper support away from the work support, and means for simultaneously oscillating said looper support, whereby the looper is given a needle avoiding movement.

5. The combination of a needle, a looper, a looper carrier, a looper support on which said looper carrier is pivoted, means for oscillating said carrier, means for moving said looper support away from the work support, means for simultaneously oscillating said looper support, whereby the looper is given a needle avoiding movement, and means whereby the extent of needle avoiding movement may be varied.

6. The combination of a work support, a needle, a looper, a looper carrier, a looper support on which said carrier is pivoted, means for oscillating said support whereby said looper is given a needle avoiding movement, and means for moving said I looper support bodily in a direction substantially at right angles to the work support, when the looper is in the needle loop.

7. The combination of a work support, a needle, a looper, a looper carrier, a looper support on which said carrier is mounted, said looper carrier being pivoted so as to swing in a plane parallel to the axis of said looper support, a shaft parallel with said looper support, means for connecting said shaft with said looper support, means for oscillating said shaft whereby said support is given a bodily movement, and means for oscillating said support.

8. The combination of a work support, a needle, a looper, of a looper carrier, a looper support on which said carrier is pivoted, so as to swing in a plane parallel to the axis of said looper support, means for oscillating said carrier, a shaft parallel to said looper support, means for oscillating said shaft and for simultaneously bodily moving said looper support to and from the work support.

9. The combination of a work support, a needle, a looper, a looper carrier, a looper support for said carrier, spaced arms in which said looper support is mounted, said looper carrier being pivoted to said looper support, between said spaced arms and means for oscillating said arms, whereby said looper support is given a bodily movement, relative to the work support.

10. The combination of a work support, a needle, a looper, a looper carrier, a looper support for said carrier, spaced arms in which said looper support is mounted, said looper carrier being pivoted to said looper support between said spaced arms and means for oscillating said arms whereby said looper support is given a bodily movement relative to the work support, and means for oscillating said support in said arms.

11. The combination of a work support, a needle, a thread-carrying looper cooperating with the needle entirely beneath the work support, means for moving said looper into and out of the needle loop, means for moving said looper laterally to avoid the needle, and means independent of the laterally moving means for the looper and operating through said looper, for drawing the needle loop away from the work support when on said looper to assist in tightening the stitch.

In testimony whereof I aifix my signature, in presence of two witnesses.

LANSING ONDERDONK.

Witnesses:

WALTER HARTLEY, FRANKLIN H. CHILTON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

